I am running Mac OS X 10.7 Lion and it's very cool, but I don't run Time Machine for proper backups. I know, I know, I should do so, but I don't have any external computers on the network to host the drive. Anyway, I can see that Lion includes version control and am wondering how you actually use it with a file. For example, if I'm editing a photo, save the edits, then change my mind the next day, can I back up to the previous version of the file?

I have a folder full of files which are named with four digits and a file extension e.g. 0312.file and an XML-file describing the contents of these files. I am trying to do a shell scipt that will create folders and rename these files according to the xml, but I don't know how?

This is a template of what the xml looks like:

<section label="AA. category">
<children label="topic" source="AABB.file" />
</ section>

The script should represent the categories as folders containing the related topics, which should be represented as filenames.

I keep running low on space on my PC hard drive and am wondering if there's any sort of trick for freeing up all my wasted space, especially with temp files and such? I'm running Windows 7 if that makes a difference?

As part of some user interface testing I'm involved with on an Ubuntu Linux system, I find myself frequently having to rename groups of files in a sequential manner. That is, I'll have files like "output mm-dd-yyyy at hh:mm:ss" and need to rename them to "testrun-xx-file-yy". Is there any way to automate this so I don't have to go crazy typing?

Dave, you've said in a different article (see Download managers that allow resumption of interrupted downloads) that Apple's Safari browser has that as an option for its download manager. Just right-click on an interrupted download in the "Download Window". I'm a bit confused, because I have Safari on a Mac with OSX tiger. When I control-click there is NO option in the window to resume download. Please clarify as you said Safari can do this. How can i resume an interrupted download?